KR20010020463A - Metal mold and press device - Google Patents

Abstract

In the mold formed of the upper mold 10 and the lower mold 40, joining surfaces A1-A4 and a press surface 12 joined to each other at the time of press working are formed. The groove 20 is formed in the joining surface A1 formed in the inner peripheral surface 16a of the side plate 16. As shown in FIG. When the upper die 10 and the lower die 40 are joined, the groove 20 is blocked by the joining surface of the lower die 40 to form a tunnel-shaped passageway. The lubricant introduced from the first opening 21a is recovered at the second opening 21b through the groove 20. A part of the lubricant passing through the groove 20 is supplied to the joining surfaces A1-A4.

Description

Mold and Press Equipment {METAL MOLD AND PRESS DEVICE}

The metal mold | die consists of several metal mold pieces, and is mounted and used for a press apparatus. The press apparatus presses the molding material inserted between the mold pieces to obtain a molded article. As an example of such a metal mold | die, what is used in order to shape a roof tile is mentioned. In general, as a tile mold, an araji (荒地: raw material of a tile-molded product in which a clay is cut in a square shape, hereinafter referred to as "clay material") is set in a lower mold and pressed into an upper mold. The pressed clay material is deformed according to the internal shape of the mold, that is, the shape of the cavity formed between the upper mold and the lower mold, so that a tile having a desired shape can be obtained.

The joining surface which joins mutually is formed in the upper mold | type and the lower mold | type so that the deformed clay may not push out at the time of pressing in a cavity. If such a mold is used for a long time, the joint surface wears out due to the contact resistance between the joint surfaces. In particular, as a metal mold for tile, this abrasion is accelerated when the clay is blocked on the bonding surface, and the bonding surface may be damaged by clay particles. In addition, since clay contained moisture, the joint surface was rusted, and wear was accelerated further.

Therefore, there exist some described in Unexamined-Japanese-Patent No. 5-5408 as an apparatus which prevents such abrasion. This device is to spray lubricating oil near the joint surface of the upper mold and the lower mold of the tile holding forming apparatus.

However, lubricating oil is wasted because only the spraying does not sufficiently spread the lubricating oil on the joint surface, and the lubricating oil is supplied to the unnecessary portion. On the other hand, even if lubricating oil can be supplied to the joint surface, supplying too large a quantity and every press operation is a waste of lubricating oil.

The main object of this invention is to provide the metal mold | die and the press which can prevent abrasion of a joining surface.

The present invention relates to a mold for press working a molding material and a press apparatus equipped with the mold.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the upper mold | die of a metal mold | die in embodiment of this invention.

2 is a rear view of the same upper die;

3 is a front view of the same upper die;

4 is a cross-sectional view of the upper mold side plate of the same upper mold.

5 is a perspective view of a lower mold of a mold in the embodiment of the present invention.

6A is a cross-sectional view of the first lower mold side plate in the same lower mold;

Fig. 6B is a sectional view of the side plate for cutouts in the same lower mold.

6C is a cross-sectional view of the second lower mold side plate in the same lower mold;

Fig. 6D is a sectional view of the third lower mold side plate in the same lower mold.

7 is a perspective view illustrating a state in which the same upper mold and lower mold are combined.

FIG. 8 is a cross-sectional view taken along the line A-A of FIG. 7; FIG.

FIG. 9 is a cross-sectional view taken along line B-B in FIG. 7; FIG.

10 is a press device according to an embodiment of the present invention.

11 is a perspective view of a tiled product.

12A is an explanatory diagram illustrating a state in which a poppet mounted on a poppet mounting cylinder is fitted into a communication hole, and shows a state before contacting with the clay material.

It is explanatory drawing explaining the state in which the poppet mounted to the poppet mounting container was fitted in the communication hole, and it showed the state which contacted and contacted the clay material.

Fig. 13 is an explanatory diagram illustrating an outline of a lubricating oil supply and an air suction / lubrication oil recovery mechanism.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, in this invention, as a metal mold | die which has a 1st and 2nd mold piece, the joining surface joined together when a 1st and 2nd mold piece presses, and the press surface which presses a workpiece material, respectively The eggplant mold, which is formed in the lubricant supply portion formed on the joint surface and at least one of the first and second mold pieces so as to supply lubricant to at least one of the joining surfaces of the first and second mold pieces. A first communication path communicating with the lubricant supply part, an outer surface of the mold piece having the first communication path, and an introduction port for supplying lubricant to the lubricant supply part through the first communication path, and the first and the second communication paths. A second communication path formed inside at least one of the mold pieces and in communication with the lubricant supply part communicating with the lubricant supply part, and formed on an outer surface of the mold piece having the second communication path, and further comprising a second communication path. It provides a mold including an outlet for discharging the lubricant through the mold.

In the present invention, a mold having a first and a second mold piece, each of which has a joining surface and a press surface for pressing a work material, when the first and second mold pieces are pressed, the lubricant is removed. In order to supply to the joining surface of a 1st or 2nd mold piece, the lubricant supply groove formed in the joining surface, the 1st communication path formed in the inside of a 1st or 2nd mold piece, and communicating with a lubricant supply groove, A second communication path formed on an outer surface of the mold piece having a single communication path and further provided with an inlet for supplying a lubricant to the groove through the first communication path, and formed inside the first or second mold piece and communicating with the groove; And a mold formed on an outer surface of the mold piece having the second communication path, and further comprising a discharge port for discharging the lubricant to the outside of the mold through the second communication path.

In addition, in order to solve the problem of the present invention, in the present invention, as a mold having the first and second mold pieces, the first and second mold pieces are bonded to each other when pressing, and the work material is pressed. Press means each having a mold having a press surface, a first mold piece and a second mold piece of the mold, for pressing the work material disposed between the mold pieces with relatively close proximity to the first and second mold pieces; A press device having a counting means for counting press times, comprising: a lubricant supply portion formed on a joining surface for supplying lubricant to at least one of the joining surfaces of the first and second mold pieces, and the first and second molds; It is formed on at least one of the insides of the piece, and is formed on the outer surface of the mold piece having the first communication path and the first communication path communicating with the lubricant supply part, and further, the lubricant is lubricated through the first communication path. A press device including an inlet for supplying a lubricant supply part, a supply device for supplying lubricant to the inlet port, and a control means for driving the supply device according to a predetermined count number and a predetermined timing by the counting means. to provide.

According to the present invention, there is provided a mold having first and second mold pieces, each of which has a joining surface to be joined to each other when the first and second mold pieces are pressed and a press surface for pressing a work material; Press means for pressing a work material disposed between both mold pieces, each having first and second mold pieces of the mold, with relatively close proximity to the first and second mold pieces, and counting means for counting the number of presses. In a press apparatus having: a lubricant supply groove formed in the joining surface for supplying lubricant to the joining surface of the first or second mold piece, and formed inside the first or second mold piece and in communication with the groove; It is formed in the outer surface of the metal mold | die piece which has a 1st communication path and a 1st communication path, and is an inlet for supplying a lubricant to a groove | channel through a 1st communication path, and is formed in the inside of a 1st or 2nd mold piece, and also a groove | channel Kite on A discharge port formed on an outer surface of the mold piece having the second communication path and the second communication path, and for discharging the lubricant to the outside of the mold through the second communication path, and a supply device for supplying the lubricant to the introduction port; And a control means for driving the supply apparatus in accordance with a predetermined count number and a predetermined timing by the counting means.

As shown in Figs. 1 to 5, the roofing die is composed of an upper die 10 as a first die and a lower die 40 as a second die. The upper mold | type 10 is demonstrated.

As shown in FIG. 1 and FIG. 3, a first pedestal 11 is formed on the upper die 10. The pedestal 11 has a thickness portion 11a and first and second speech portions 11b and 11c (hereinafter, referred to as "first and second") formed on both sides of the thickness portion 11a. Horizontal surface portion ". The pedestal 11 is substantially flat in a square as a whole. A cutout forming portion 11d is formed at one angle of the pedestal 11. The cutout portion 2 of the tile-shaped article 1 shown in FIG. 11 is formed by the cutout portion 11d. In FIG. 1 of the thickness part 11a, the upper surface (inner side of a mold) becomes the press surface 12 which contact | connects a clay material. As shown in FIG. 3, the press surface 12 is curved in a wave shape, and the pressed clay material is deformed to this shape to form a tile-shaped article 1. The outline shape of the press surface 12 coincides with the outline shape of the tile molded product 1 to be molded.

As shown in FIG. 1, the belt member 14 is attached so that the three side wall surfaces of the press surface 12 may be enclosed.

As shown in FIG. 1 and FIG. 2, the upper side plate 16 is attached to the back (inner side in FIG. 1) of the said base 11. As shown in FIG. The side plate 16 is fixed to the pedestal 11 by a hexagonal bolt 19. As shown in FIG. 4, a pair of communication paths 18 are formed inside the side plate 16. As shown in FIG. 1, FIG. 3, and FIG. 4, the guide groove 20 as a lubricant supply part is formed on the inner surface 16a of the side plate 16. As shown in FIG. The guide groove 20 is formed to extend in the horizontal direction near the upper end of the upper side plate 16. The guide groove 20 is U-shaped in cross section. At both ends of the guide groove 20, first and second openings 21a and 21b as lubricant supply portions are formed. An introduction port 17a for supplying lubricating oil is formed on the outer surface 16b of the upper side plate 16 and on the rear surface of the first opening 21a. The first opening 21a and the introduction port 17a communicate with each other by the communication path 18. A recovery port 17b for recovering lubricating oil is formed on the rear surface of the second opening 21b. The second opening 21b and the recovery port 17b communicate with each other by the communication path 18.

On the side (left side in FIG. 1) of the inner surface 16a, the round part attached to the tip of the manju 3 (the tile molded article 1) shown in FIG. The concave portion 22 for forming the " spherical surface portion " As shown in Fig. 1 and Fig. 3, a guide 24 is attached to the inner surface 16a adjacent to the first horizontal surface portion 11b.

As shown in Fig. 1 and Fig. 3, the inner surface 16a is a first joining surface A1. The planar part which consists of the surface of the belt member 14 adjacent to the 1st horizontal surface part 11b, and the wall surface of the thickness part 11a of the upper pedestal 11 is made into the 2nd bonding surface A2. The flat part constituted by the surface of the belt member 14 adjacent to the second horizontal plane part 11c is referred to as the third joining surface A3. In FIG. 1, the flat part which consists of the surface of the front belt member 14 and the wall part of the thickness part 11a of the upper base pedestal 11 in front of it is made into 4th joining surface A4. The cut surface of the pedestal cutout 11d is referred to as a fifth joining surface A5.

As shown in FIG. 1, FIG. 12A and FIG. 12B, the communication part 26 which communicates from the press surface 12 side to the back surface side is formed in the thickness part 11a. A cylindrical poppet mounting cylinder 27 is fitted in the communication hole 26, and a poppet 28 is slidably mounted in the cylinder 27. As shown in FIG. 12A, the poppet 28 is composed of a body 29 and a head 30. A coil spring 29 is attached to the narrow diameter portion 30a of the head 30. The coil spring 29 is fitted between the flange 27a at the tip of the poppet mounting cylinder and the enlarged diameter portion 30b of the head 30, so that the poppet 28 is always forced in the direction of the press surface 12. All. And as shown in FIG. 12A, the front-end | tip of the enlarged diameter part 30b protrudes forward from the position of the press surface 12. As shown in FIG. The connector 31 is screwed into the rear end of the poppet mounting cylinder 27.

The lower mold 40 will be described. As shown in FIG. 5, a second pedestal 41 is formed in the lower die 40. The pedestal 41 is substantially flat in a square as a whole. On the upper surface of the pedestal 41, a press surface 42 is formed which matches the planar shape of the pedestal 41. The press surface 42 is curved in a wave shape, and the pressed clay material is deformed to this shape to form a tiled product. A part (front side in FIG. 5) of the press surface 42 is divided blocks 42a and 42b for forming the spherical portion 3 and the eaves end 4 of the tiled product shown in FIG. .

Lower side plate 44-46 is attached to the side part (three directions except the front side in FIG. 5) of the pedestal 41, respectively. The side plates 44-46 are fixed to the pedestal 41 by a hexagon bolt 48.

As shown in FIG. 5 and FIG. 6A, a guide groove 49 is formed in the inner surface 44a of the first lower die side plate 44 (inner side in FIG. 5). The guide groove 49 is formed to extend in the horizontal direction near the upper end of the lower mold side plate 44. The guide groove 49 is U-shaped in cross section. At both ends of the guide groove 49, first and second opening portions 50a and 50b as lubricant supply portions are formed.

As shown in Figs. 5, 6C and 6D, guide grooves 49 as lubricant supply portions are also formed on the inner surfaces 45a and 46a of the second and third lower die side plates 45 and 46, respectively. First and second openings 50a and 50b are formed at both ends of the guide groove 49. In addition, an introduction port 51a and a recovery port 51b corresponding to both of the opening portions 50a and 50b are formed on the outer surfaces 45b and 46b of the second and third lower die side plates 45 and 46. .

As shown in Fig. 5 and Fig. 6B, the side plate 47 for the cutout portion is fixed by the hexagon bolt 48. The cutout portion 2 of the tile-shaped article 1 shown in FIG. 11 is formed by the cutout side plate 47. In the inner surface 47a of the cutout side plate 47, a guide groove 49 as a lubricant supply portion is formed. The guide groove 49 is formed to extend in the horizontal direction near the upper end of the side plate 47. The cutout side plate 47 has an inner surface 47a that is bent 90 degrees to form the cutout portion 2, and the guide groove 49 is bent 90 degrees according to the angle of the inner surface 47a. . The guide groove 49 is U-shaped in cross section, and first and second opening portions 50a and 50b are formed at both ends of the guide groove 49.

As shown in FIGS. 6A and 6D, the first opening 50a of the guide groove 49 of the first lower die side plate 44 is formed of the guide groove 49 of the adjacent third lower die side plate 46. The two openings 50b communicate with each other via the communication path 52. As shown in FIGS. 6A and 6B, the second opening 50b of the guide groove 49 of the first lower die side plate 44 is the first of the guide groove 49 of the side plate 47 for adjacent cutouts. It communicates with the opening part 50a through the communication path 52. As shown in FIGS. 6B and 6C, the second opening 50b of the guide groove 49 of the cutout side plate 47 is the first opening of the guide groove 49 of the adjacent lower lower side plate 45. It communicates with 50a through the communication path 52. As shown in FIG. Therefore, each of the guide grooves 49 formed on the three lower mold side plates 44-46 and the cutout side plate 47 of the lower mold 40 is connected to one through the communication path 52 on the way.

As shown in FIG. 6D, an inlet 51a for supplying lubricating oil is formed in the outer surface 46b near the end of the third lower mold side plate 46. The inlet port 51a communicates with the first opening 50a of the third lower die side plate 46 by the communication path 52. As shown in FIG. 6C, a recovery port 51b for recovering lubricating oil is formed on the outer surface 45b near the end of the second lower mold side plate 45. The recovery port 51b communicates with the second opening 50b of the second lower die side plate 45 by the communication path 52.

As shown in FIG. 5, the plane which the front wall of the division blocks 42a and 42b of the said press surface 42 forms is made into the 1st bonding surface B1. The plane which the inner wall surface of the said 2nd lower side plate 45 forms is made into the 2nd bonding surface B2. The plane which the inner wall surface of the said 2nd lower side plate 45 forms is made into the 3rd bonding surface B3. The plane which the inner wall surface of the said 1st lower side plate 44 forms is made into the 4th bonding surface B4. In addition, the plane which the inner surface 47a of the cutout side plate 47 forms is made into the 5th bonding surface B5.

Next, the press apparatus 71 equipped with the metal mold | die comprised as mentioned above is demonstrated. In reality, a plurality of press apparatuses 71 are provided, but in this embodiment, one of them is selected and described.

As shown in FIG. 10, the main body 75 of the press apparatus 71 is composed of a frame 72 and a main body table 73 on which the frame 72 is supported. The slide 76 is provided in the frame 72. The slide 76 is guided by a guide (not shown) to move from the upper standby position to the lower press position. The slide 76 is driven by the crank device 78.

The crank device 78 is driven by a motor 79 arranged above the frame 72. The press means is constituted by the crank device 78 and the motor 79. On the main body table 73, a holster 80 as a holding means is provided. The upper mold 10 of the mold is fixed to the lower surface of the slide 76, and the lower mold 40 is fixed to the upper surface of the holster 80. In this state, each press surface 12 and 42 opposes. In the movement path of the upper die 10, the frame 72 is equipped with an optical sensor 81 as a detection means. The optical sensor 81 is comprised by the light transmission part 81a and the light reception part 81b.

The press means is comprised by the said slide 76, the crank apparatus 78, the motor 79, and the control apparatus 84. As shown in FIG.

As shown in FIG. 10, the press apparatus 71 is provided with the pressure oil supply apparatus 82, the lubricating oil tank 83, and the control apparatus 84 as a suction means and a lubricant supply means. Based on FIG. 13, the hydraulic oil supply apparatus 82 is demonstrated.

In the pressure oil supply device 82, two supply cylinders 85 for lubricating the upper mold 10 and the lower mold 40, and air in the cavity C are sucked from the upper mold 10 and the lower mold 40. Two suction cylinders 87 for recovering lubricating oil are provided, respectively. First, a mechanism for supplying lubricant to the upper mold 10 and the lower mold 40 will be described.

The base end of the piston rod 88 of both supply cylinders 85 is connected by the connecting plate 89. A rotary crank plate 91 is provided between both piston rods 88. The motor 90 is arranged adjacent to the rotary crank plate 91. The tip of the output shaft 90a of the motor 90 is fixed to the center of the rotary crank plate 91. Rotating crank plate 91 is rotatably attached to the base end of the connecting lever 92 from the center. The tip of the connecting lever 92 is rotatably attached to the center of the connecting plate 89. As a result, when the rotary crank plate 91 rotates in response to the rotation of the output shaft 90a of the motor 90 and the connecting lever 92 presses the connecting plate 89, both piston rods 88 retreat. When it rotates again, the connecting lever 92 attracts the connecting plate 89, and both piston rods 88 advance.

A limit switch 97 is provided on the side of the rotary crank plate 91. The limit switch 97 detects the rotational position of the rotary crank plate 91 by interfering with the projection 91a protruding from the outer crank plate 91.

Each supply cylinder 85 and each introduction port 17a, 51a of the upper mold | type 10 and the lower mold | type 40 are connected by the oil supply hose 95, respectively. Retraction of both piston rods 88 flows into each of the supply cylinders 85 from each of the lubricant tanks 83 through the supply hoses 93. The lubricating oil in each supply cylinder 85 is supplied to each oil supply hose 95 by advancing of both piston rods 88. In the middle of each of the supply hoses 93, a first check valve 96 is provided to prevent the back flow of the lubricating oil from the cylinder 85.

A second check valve 98 is provided in the middle of each oil supply hose 95. The second check valve 98 allows the passage of the lubricating oil in the directions of the upper mold 10 and the lower mold 40 by exciting the solenoid, and by the element, the second check valve 98 in the direction of the upper mold 10 and the lower mold 40. Stop the passage of lubricant. A venturi tube 99 is provided downstream of the second check valve 98 in the middle of the oil supply hose 95. The venturi tube 99 and the air pump device 100 are connected by an air hose 101. The venturi tube 99 accelerates the speed of the lubricating oil (and introduced air) in the lubrication hose 95. One third check valve 102 is provided in the middle of both the air hoses 101 and the air pump apparatus 100. The third check valve 102 allows the supply of the air supplied from the air pump device 100 to the oil supply hose 95 by exciting the solenoid and stops the supply by turning it off. The solenoid of the third check valve 102 is excited or depressed in synchronization with the excitation or element of the solenoid of the second check valve 98. Therefore, when lubricating oil is supplied to the upper mold 10 and the lower mold 40, air is introduced to assist the rapid supply of the lubricant.

Next, a mechanism for sucking air in the cavity C and a mechanism for recovering the lubricating oil supplied to the upper mold 10 and the lower mold 40 will be described.

Both suction cylinders 87 have a larger internal diameter and stroke than the supply cylinder 85. The base end of the piston rod 105 in the two suction cylinders 87 is connected by a connecting plate 106. A rotary crank plate 108 is provided between both piston rods 105. The motor 107 is disposed adjacent to the rotary crank plate 108. The tip of the output shaft 107a of the motor 107 is fixed to the center of the rotary crank plate 108. The rotary crank plate 108 is rotatably attached to the base end of the connecting lever 109 eccentric from the center. The tip of the connecting lever 109 is rotatably attached to the center of the connecting plate 106.

As a result, when the rotary crank plate 108 rotates in accordance with the rotation of the output shaft 107a of the motor 107 and the connecting lever 109 presses the connecting plate 106, both piston rods 105 retreat. When it rotates again, the connecting lever 109 pulls the connecting plate 106, and both piston rods 105 advance.

A limit switch 114 is provided on the side of the rotary crank plate 108. The limit switch 114 detects the rotational position of the rotary crank plate 108 by interfering with the projection 108a protruding from the outer periphery of the rotary crank plate 108.

Each suction cylinder 87, and each recovery port 17b, 51b of the upper mold | type 10 and the lower mold | type 40 is connected by the suction hose 110, respectively. A strainer 120 is disposed in the middle of the suction hose 110. Strainer 120 removes clay deposits mixed in lubricating oil recovered from upper mold 10 and lower mold 40. In addition, a bypass suction hose 115 extending from the connector 31 mounted on the rear surface of the upper mold 10 is connected in the middle of the suction hose 110 on the upper mold 10 side.

Each suction cylinder 87 and each lubricating oil tank 83 are connected by the oil return hose 111, respectively. The lubricating oil which enters into the suction cylinder 87 from the upper mold 10 and the lower mold 40 through the suction hose 110 by the retraction of the piston rod 105 is the oil recovery hose 111 by the advance of the piston rod 105. ) Is returned to the lubricating oil tank (83).

A fourth check valve 112 is provided in the middle of each suction hose 110. The fourth check valve 112 allows the passage of the lubricating oil from the upper mold 10 and the lower mold 40 by excitation of the solenoid, and the passage of the lubricant from the upper mold 10 and the lower mold 40 by the element. Stop it. In the middle of each oil recovery hose 111, a fifth check valve 113 for preventing the back flow of the lubricating oil from the cylinder 86 is provided.

The control device 84 controls the entire press device 71 and at the same time, each of the motors 90 and 107 and the first and third check valves 99 and 102 and 112 of the hydraulic oil supply device 82. ) And the air pump device 100 to control each device. The controller 84 is also connected to the light receiving portion 81b of the optical sensor 81 and counts the number of times according to the detection signal output from the light receiving portion 81b. In the present embodiment, the control device 84 is configured to drive the respective motors 90 and 107 every time the detection signal is counted five times (that is, five presses). The control device 84 is also connected to the limit switches 97 and 114 to control the driving time and timing of the respective motors 90 and 107 in accordance with the detection signals of the limit switches 97 and 114.

As shown in FIG. 10, in front of the press apparatus 71, the belt conveyor 116 which conveys a clay material and the carrying-in robot 117 which carry in a clay material into the lower mold | type 40 are arrange | positioned. Moreover, behind the press apparatus 71, the carrying-out robot 118 which carries out the press-processed tiled molded article, and the belt conveyor 119 which conveys a tiled molded article are arrange | positioned.

Next, the effect | action of the press apparatus 71 comprised in this way is demonstrated. However, in the initial state, the piston rods 88 and 105 of the supply cylinder 85 and the suction cylinder 87 are located at the rightmost side in FIG.

The electric power is turned on to operate the motor 79, the hydraulic oil supply device 82, the control device 84, the air pump device 100, the second check valve 98 and the like. Then, the operation switch (not shown) is operated to start the operation. The motor 79 is driven to raise the slide 76 of the press apparatus 71 from the initial position by the crank apparatus 78 once. The earliest rows of clay material on the belt conveyor 116 are set on the press surface 42 of the lower mold 40 by the loading robot 117. In synchronization with the set of clay material, the motor 79 is driven again to lower the slide 76 by the crank device 78. The light sensor 81 detects this when the slide 76 is lowered to block the projection of the light from the light transmitting portion 81a to the light receiving portion 81b. The optical sensor 81 outputs the detected output signal to the control device 84. The control device 84 drives the fourth check valve 112 in accordance with the output signal from the optical sensor 81.

The upper mold | type 10 descends and joining with the lower mold | type 40 starts. As shown in FIG. 9, when the upper mold 10 descends, the bonding surface A1 of the upper mold 10 is joined to the bonding surface B1 of the lower mold 40, and as shown in FIG. 8, The joining surface B2 of the lower mold 40 is the joining surface A2 of the upper mold 10, the joining surface B3 is the joining surface A3, the joining surface B4 is the joining surface A4, and the joining surface B4. The surface B5 joins with the bonding surface A5, respectively. In this step, the cavity C sealed by the upper mold 10 and the lower mold 40 is formed.

At the same timing, controller 84 drives motor 108 to retract piston rod 105 of both suction cylinders 87. At the same time, the fourth check valve 112 is driven. Then, both suction hoses 110 are in a negative pressure state, and the air is sucked from the bypass suction hoses 115 through the connector 31 through the gap between the poppet 28 and the poppet mounting cylinder.

When the upper die 10 descends again, the guide groove 20 formed in the upper die side plate 16 is blocked by the joining surface B1. The guide groove 20 is completely blocked by the joining surface B1, and there is no communication port with the outside except for the first and second openings 21a and 21b to form a tunnel. Similarly, the guide groove 49 formed in each lower mold side plate 44-46 and the cutout side plate 47 is also blocked by the joining surfaces A2-A5.

The guide groove 49 has a tunnel shape in which all the guide grooves 49 of the lower die side plates 44-46 and the cutout side plate 47 are connected to each other in a state completely blocked by the joint surface B1. In addition to the first opening 50a formed in the third lower die side plate 46 directly connected to the introduction port 51a, and the second opening 50b formed in the second lower die side plate 45 directly connected to the recovery port 51b. There is no communication port with the outside. In this state, air in the cavity C is sucked from the bypass suction hose 115 through the connector 31. Then, it is sucked from both suction hoses 110 from the minute gaps of the respective joining surfaces A1-A5 (B1-B5).

With the guide grooves 20 and 49 in a tunnel shape, the control device 84 drives the motor 90 to advance the piston rod 88 of both supply cylinders 85. At the same time, the first and second check valves 98 and 102 are driven. Then, the pressurized oil (lubricating oil) flows into each of the guide grooves 20 and 49 from the respective inlet openings 17a and 51a of the upper mold 10 and the lower mold 40 through the first openings 21a and 50a. . At this time, since the air supplied from the air pump device 100 is accelerated by the venturi tube 99, the lubricating oil is quickly introduced into each inlet port 17a, 51a. Since the upper die 10 continues to descend even while this lubricant flows in, the lubricant is joined between the upper die 10 and the lower die 40 (A1-A5) (B1) in each of the guide grooves 20 and 49. -B5) to lubricate the joining surfaces A1-A5 (B1-B5) (also, there may be lubrication in penetration by the capillary phenomenon). Here, the control device 84 stops the motor 90 once in the state in which the piston rod 88 is most advanced (right in FIG. 13) in accordance with the detection signal from the limit switch 97.

The lubricating oil introduced into each of the guides 20 and 49 enters the cylinder 87 by the action of both suction cylinders 87 without being stagnated in each of the guide grooves 20 and 49. Then, it is sent to the oil recovery hose 111 by the amount of the suction cylinder 87 changed from suction to discharge and recovered. Here, the control device 84 stops the motor 107 once with the piston rod 105 most advanced (right in FIG. 13) in accordance with the detection signal from the limit switch 114.

As shown in Figs. 7-9 with the lubricant supplied between the joint surfaces A1-A5 and B1-B5, the upper mold 10 fixed to the lower surface of the slide 76 is lowered and lowered. Combined with (40), press clay material. Since each of the guide grooves 20 and 49 extends in the horizontal direction, lubricating oil penetrates widely between the joined joint surfaces A1-A5 and B1-B5. The lubricating oil reduces the contact resistance between the two. Moreover, since the lubricating oil introduced into each guide groove 20 and 49 is recovered by the oil collection hose 96, unnecessary lubricating oil will not flow down and be wasteful. In addition, the clay material is not pressed by the air remaining in the cavity C, so that the problem of deformation of the clay material does not occur.

The pressed clay material is molded by deforming according to the internal shape of the cavity C. At this time, as shown in FIG. 12B, as the upper die 10 descends, the poppet 28 is pressed against the press surface 12 to retreat in the poppet mounting tubing direction, and the front face of the head 30 is the press surface 12. It becomes the same plane level as. Therefore, the marks by the poppet 28 do not adhere to the clay material.

Next, the crank device 78 is driven to slide the slide 76 again. The molded tile molded article 1 then appears on the press surface 42 of the lower mold 40. The tile-shaped article 1 is carried out by the carrying-out robot 118, and is put on the belt conveyor 119. As shown in FIG. On the other hand, the next clay material is set on the press surface 42 of the lower mold 40 by the loading robot 117, and the press processing is repeated.

In this repeated press processing, the number of lifting and lowering of the slide 76 is detected by the optical sensor 81. The control apparatus 84 counts the number of times according to the detection signal output from the light receiving part 81b of the optical sensor 81. In the present embodiment, the motors 90 and 107 are driven whenever the slide 76 is lifted and lifted five times to process the five tile-shaped articles 1.

By configuring in this way, the following effects can be acquired in the said embodiment.

(1) Although each joining surface A1-A5 of the upper mold | type 10 and each joining surface B1-B5 of the lower mold | type 40 are joined at the time of press work, since a lubricating oil is interposed between them at this time, contact resistance This reduction allows for smooth press processing, making it difficult to wear. In addition, even if clay is sandwiched between the joining surfaces, the joining surfaces are less likely to be damaged by the lubricating function of the lubricating oil.

(2) Since the lubricant oil is not supplied to the joint surfaces A1-A5 (B1-B5) more than necessary, and is recovered from the recovery port 51b, the lubricating oil surrounds the press surface 42 and the lower mold 40. It is not submerged in water or mixed with the press oil of the press apparatus 71. In addition, since the lubricating oil recovered and returned to the lubricating oil tank 83 can be used again, it is possible to save the lubricating oil and not waste resources, thereby providing an apparatus considering the environment.

(3) The guide grooves 49 formed on the lower mold side plate 44-46 and the cutout side plate 47 of the lower mold 40 are all connected by the communication hole 52 drilled therein, and the upper mold 10 is The guide groove 49 is blocked by the joining surfaces A2-A5 to form a tunnel-shaped passage. Since each of the inlet 51a and the inlet 51b of the lubricating oil is sufficient, the structure is simplified, the pipes are reduced, the cost is reduced, the structure is simplified, and problems such as failure are less likely to occur. .

(4) The air discharged from the cavity C, which becomes a sealed state, is sucked into both suction hoses 110 from a minute gap of each joining surface A1-A5 (B1-B5) as one course. In addition, as another course, it passes through the communication hole 26 and is sucked into the bypass suction hose 115 through the connector 31. In this way, since air is quickly discharged as the upper mold 10 descends, the press speed is not lowered, and deformation of the clay material to be molded can be prevented as much as possible.

(5) Since the guide grooves 20 and 49 are not yet formed in the tunnel shape immediately after the upper mold 10 descends and joins the lower mold 40, air in the cavity C cannot escape. However, since the connector 31 is formed to suck air in the cavity C, the clay material does not deform.

(6) Since the head 30 of the poppet 28 protrudes, air is discharged through the gap between the poppet 28 and the poppet loading container, but the poppet 28 retreats in the poppet loading container direction according to the press and the head is retracted. (30) Since the shear surface is at the same surface level as the press surface 12, the clay material does not have marks on the poppet 28, so that the clean tiled molded article 1 can be obtained.

(7) Lubricants cannot be supplied unless the guide grooves 20 and 49 reach the joint surface and do not become tunnel-shaped. However, the air in the cavity C is preferably discharged immediately after the upper mold 10 descends and joins the lower mold 40. It is because there exists a possibility that a clay material may deform | transform because the pressure in cavity C increases. In the above embodiment, the suction start timing is made faster than the lubricant start timing, so that the exhaust gas is discharged more efficiently. In addition, the timing shift can be easily adjusted by the protrusions 91a and 108a that interfere with the limit switches 97 and 114 for turning the motors 90 and 107 on and off.

(8) Since one lubricating oil is supplied in five reciprocations of the upper die 10, an appropriate lubricating oil can be supplied.

(9) Since the lubricating oil is guided by the guide grooves 20 and 49 and widened in the horizontal direction, it is possible to supply the lubricating oil without leaving the joint surfaces A1-A5 and B1-B5.

(10) Since the surface of the glaze with the glaze is applied to the surface of the glaze, the glaze will not receive the glaze. Therefore, it is preferable that the lubricant does not flow to the surface on which the glaze is applied. For example, in FIG. 10, it is preferable that lubricating oil does not adhere to the spherical part 3, the eaves end 4, the upper surface 5, etc. of the tile-molded object 1. As shown in FIG. In this embodiment, the lubricating oil is supplied to the first joining surface A1 side of the upper die 10 with respect to the spherical portion 3 and the eaves end 4, and the guide groove on the first joining surface A1 ( 20) is always disposed below the spherical portion 3 and the cornice side 4 when the mold is mounted, so that lubricant flowing from the guide groove 20 is attached to the spherical portion 3 and the cornice side 4. none.

In addition, the upper surface 5 is provided with lubricating oil to the second to fifth joining surfaces B2-B5 of the lower mold 40, and guide grooves 49 for supplying lubricating oil to these joining surfaces B2-B5. Since the silver is disposed below the upper surface 5, the lubricating oil flowing in the guide groove 49 is not attached to the upper surface 5.

In addition, this invention can also be actualized by changing as follows.

The communication hole 26 may not be formed, but may be configured to attract only to the joining surfaces A1-A5 (B1-B5). In this case, you may comprise so that the hole for lubrication and suction may be formed in direct joining surface A1-A5 (B1-B5), without forming guide groove 20 (49).

In the above embodiment, the lubricating oil is supplied to the supply hose 93 by the motor 90, the rotary crank plate 91, or the like, but other means may be used.

In the above embodiment, the poppet 28 serving as the valve member provided in the communication hole 26 is retracted along the press in the poppet mounting cylindrical direction. However, it does not matter as long as air can be suctioned even if it is not necessarily made to retreat in this way.

The position and size of the communication hole 26 can be changed freely, and of course, you may make it plural.

In the above embodiment, the mechanism on the lubricating oil supply side and the mechanism on the air suction / lubrication oil return side are one example, and the design can be changed freely.

In the above embodiment, the first and second openings 21a, 21b, 50a and 50b are formed on the guide groove 49 side. However, the first and second openings 21a, 21b, 50a and 50b may be formed in the joining surfaces A2-A5 and B1 on the side opposite to the guide groove 49. This is because even in such a configuration, the guide groove 49 is tunnel-shaped so that lubricant oil can pass through the guide groove 49 from the first and second openings 21a, 21b, 50a, and 50b.

For example, the guide groove 49 which supplies the lubricating oil formed in the inner surface 44a of the 1st side plate 44 of the lower mold | type 40 of the said embodiment was formed in a straight line horizontally. This may be formed to form a two-dimensionally widening groove on the inner surface of the side plate 120. Formation in this way makes it possible to quickly expand the lubricating oil and to supply the lubricating oil without leaving it behind.

In the said embodiment, although the guide groove 49 of the three side plates 44-46 of the lower mold | type 40 communicates with the communication path 52, you may make it independent.

In the said embodiment, the 1st opening part 21a (50a) and the 2nd opening part 21b, 50b are each formed in the vicinity of the both ends of the guide groove 20,49. This is effective to fill the guide grooves 20 and 49 as much as possible without leaving lubricating oil, but of course, they may be formed at positions other than near both ends.

Although it is preferable to collect | recover to the lubricating oil tank 83, it is only discharge | emitted from the recovery ports 17b and 51b, and it is not necessary to necessarily collect | recover and reuse to the lubricating oil tank 83. This is because the effect of preventing mixing with the press oil is sufficient.

As said embodiment, the upper mold | type 10 is equipped with the one side plate 16, and the lower mold | type 40 is equipped with the three side plates 44-46. This configuration is adopted in order to prevent the lubricating oil dropped as described above from adhering to the spherical portion 3 or the like, and is not necessarily limited to the arrangement of such side plates. For example, four side plates may be formed in the lower die 40, and guide grooves 49 may be formed in the inner surface of the four side plates. In this case, all the grooves may be connected by the communication path 52 as in the embodiment, or may be independent.

It is also free to apply to the tile molding of a different form from the tile of the said embodiment. In addition, it is possible to apply to press processing other than the tile-molded product as long as there is a joint surface portion.

The drive timing of the oil pressure supply apparatus 82 in the said embodiment can be changed suitably.

In the press apparatus of the above embodiment, the non-contact type optical sensor 81 is used as the detection means, but other means may be used.

In addition to the mold of a tile-molded product, it is possible to apply if it is a metal mold | die with a junction part. Other lubricants are free to be used in a form that does not deviate from the gist of the present invention, such as releasing oil or water other than lubricating oil.

Claims (15)

A mold having a first and a second mold piece, each of which has a joining surface to be joined to each other when the first and second mold pieces are pressed and a press surface to press the workpiece. In order to supply a lubricant to at least one joining surface of a 1st and 2nd mold piece, the lubricant supply part provided in the joining surface, A first communication path formed inside at least one of the first and second mold pieces and in communication with a lubricant supply part in communication with the lubricant supply part; An introduction port formed on an outer surface of the mold piece having the first communication path and for supplying a lubricant to the lubricant supply part through the first communication path; A second communication path formed inside at least one of the first and second mold pieces and in communication with the lubricant supply part; A discharge port is formed on the outer surface of the mold piece having the second communication path and discharges lubricant to the outside of the mold through the second communication path. Mold comprising a. A mold having a first and a second mold piece, each of which has a joining surface to be joined to each other when the first and second mold pieces are pressed and a press surface to press the workpiece. A lubricant supply groove formed in the joining surface for supplying the lubricant to the joining surface of the first or second mold piece, A first communication path formed inside the first or second mold piece and in communication with the lubricant supply groove; An introduction port formed on an outer surface of the mold piece having the first communication path, and for supplying lubricant to the groove through the first communication path; A second communication path formed inside the first or second mold piece and in communication with the groove; And a discharge port formed on an outer surface of the mold piece having the second communication path and for discharging lubricant to the outside of the mold through the second communication path. The method of claim 2, The said 1st communication path was formed in the metal mold | die of the side in which the groove | channel was formed, The metal mold | die characterized by the above-mentioned. The method of claim 2, The said 2nd communication path was formed in the metal mold | die of the side in which the groove | channel was formed, The metal mold | die characterized by the above-mentioned. A mold having first and second mold pieces, each of which has a joining surface to be joined to each other when the first and second mold pieces are pressed, and a press surface to press the workpiece, Press means for pressing a work material having the first and second mold pieces of the mold, and having the first and second mold pieces relatively accessible and arranged between the mold pieces; In a press apparatus having a counting means for counting the number of presses, A lubricant supply portion formed on the joint surface to supply lubricant to at least one of the joint surfaces of the first and second mold pieces; A first communication path formed inside at least one of the first and second mold pieces and in communication with the lubricant supply part; An introduction port formed on an outer surface of the mold piece having the first communication path and for supplying a lubricant to the lubricant supply part through the first communication path; A supply device for supplying lubricant to the inlet, And control means for driving said supply apparatus in accordance with a predetermined count number and said predetermined timing by said counting means. The method of claim 5, A second communication path formed inside at least one of the first and second mold pieces and in communication with the lubricant supply part; And a discharge port formed on an outer surface of the mold piece having the second communication path, and for discharging lubricant to the outside of the mold through the second communication path. The method according to claim 5 or 6, And the lubricant supply unit is a lubricant supply groove. A mold having first and second mold pieces, each of which has a joining surface to be joined to each other when the first and second mold pieces are pressed, and a press surface to press the workpiece, Press means each having first and second mold pieces of said mold, said press means for pressing the first and second mold pieces to be disposed between the mold pieces with relatively close proximity to the first and second mold pieces; In a press apparatus having a counting means for counting the number of presses, A lubricant supply groove formed in the joint surface for supplying lubricant to the joint surface of the first or second mold piece; A first communication path formed inside the first or second mold piece and in communication with the groove; An introduction port formed on an outer surface of the mold piece having the first communication path, and for supplying lubricant to the groove through the first communication path; A second communication path formed inside the first or second mold piece and in communication with the groove; A discharge port formed on an outer surface of the mold piece having the second communication path, and for discharging lubricant to the outside of the mold through the second communication path; A supply device for supplying lubricant to the inlet, And control means for driving said supply apparatus in accordance with a predetermined count number and said predetermined timing by said counting means. The method of claim 8, And said first communication path is formed on the metal mold | die of the side in which the groove was formed. The method of claim 8, And the second communication passage is formed in the mold piece on the side where the groove is formed. The method according to any one of claims 8 to 10, And a discharge device connected to the discharge port to discharge the air in the cavity formed between the two mold pieces to the outside of the mold when the lubricant and the first and second mold pieces are joined to each other, and the control means is provided by a counting means. And the discharge device is driven in accordance with a predetermined count and a predetermined timing. The method of claim 11, And a lubricant supply tank for storing lubricant supplied to the supply device, wherein the lubricant discharged from the discharge port is recovered to the lubricant supply tank. The method of claim 11, And the control means drives the discharge device before the drive of the supply device. The method of claim 12, And a strainer, and the lubricant discharged from the discharge port is recovered to the lubricant supply tank through the strainer. The method of claim 11, An opening formed in at least one of the press surfaces of the first and second mold pieces, A second discharge port formed on an outer surface of the mold piece having the opening and connected to the discharge device; A third communication passage communicating with the opening and the second discharge port so as to discharge the supplied lubricant to the outside of the mold; It further has a valve member mounted in the third passage, In order to enable the discharge device to discharge the air in the cavity through the second outlet, the valve member is always forced in the cavity inward direction away from the opening, and the valve member is pressed by the workpiece to press the surface And the valve member closes the third communication path when the surface level is the same as that of the press.